Internet slow and I can't figure out why or how to fix it…?

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We have an internet deal with Xfinity and we are supposed to be getting a lot faster internet than we actually are.

We have tried range extenders, a different modem, trying out different dns servers, contacted our isp (very useless), nothing helps at all.

It is especially slow in the upstairs part of the house

We have an internet deal with Xfinity and we are supposed to be getting a lot faster internet than we actually are.

We have tried range extenders, a different modem, trying out different dns servers, contacted our isp (very useless), nothing helps at all.

It is especially slow in the upstairs part of the house where I have my computer and PS4, etc. It is expected to be slower over wireless and at a distance but never would I have expected it to be as slow as it is compared to downstairs.

I really just need help troubleshooting as I have gone through numerous websites and so far none have been able to substantially help. If anyone can help tell me whats wrong and/or what I can do to fix it that would be greatly appreciated.
also hooking up my computer using an ethernet cord is not an option as I am not able to move my computer from upstairs due to the other computer being used next to the modem.

Best Answer:

Nelson: Standard WiFi is an antiquated system and the 2.4GHz band is hopelessly overloaded in many towns and cities.

There are only three channels that can be used simultaneously with 11g gear (1, 6 & 11) and if there is any 11n gear in use, that usually uses two thirds of the band – effectively zero shareability.

Any wireless "range extender" device has to receive and re-transmit all data; working perfectly it halves the overall speed and if there is any interference or hidden station effect, it can drop to near nothing.

Your true internet speed is what you get on an ethernet connection with only that machine in use.

Anything less elsewhere is problems with your equipment and not your ISPs responsibility – blame the places that push WiFi as being usable for anything and everything when it's technically garbage…

Wired ethernet is the only system that will guarantee you get full speed on any machine.

The next best is Homeplug (powerline adapters) – get a couple of gigabit-rated units, put one next to the router and another at the PC, linked to the router & PC via ethernet.

WiFi is always an absolute last resort and should only be used for things that have no possible other connection, like phones & tablets.

If you have to use WiFi, the 5GHz band is the better choice (11a, 11ac) as that's got lots of channels and teh chance of interference is far lower – but it's somewhat shorter range…

[Radio & electronics designer and programmer for 40+ years].

Other answer:

Nelson:
This won't answer your question…maybe…
From what I've heard, and experienced, there advertised speeds are apparently only for wired connections, but idm.

What I do know is that when I upgraded my internet long ago, it got way worse. So i called and they told me I need a new modem, mine was too old. So, $120 later, internet is still crap and still dropping every once in a while. So i call, they say "you need a new router so it can work well with your new modem", router was a bit old, so another $100, still the same. So I call, and they say "we've been experiencing problems in your area for a while, others are also affected"
That was well over a year, and those same "problems" are still in my area, a large suburb of Chicago. I suggest calling them, evaluate your options and look into other internet providers (if there are any in your area, some can buy your contract if you have one with xfinity)

I know this isn't an answer..more of a rant and a suggestion, gonna link a site >

Richard:
The problem is WiFi, and especially with range extenders, which typically reduce the speed that you will get on WiFi by around 50%.

Have you looked at Powerline network adapters, an example of which is:

http://www.tp-link.us/products/details/c…

There are several makes and many models. Some offer multiple Ethernet ports and some also include a WiFi access point.

You can have more than just the two adapters in a Powerline network. They must all be supplied through the same electricity meter, and should not be separated by surge suppressors.

I hope this helps.

chrisjbsc:
What internet speed do you think you have purchased? What speed are you getting?
Inside the house, use Powerline adaptors.
Aerialnine:
Where internet enters the house…that modem , the computer connected to it…..run a speed test there….are the results for speed close to what you are paying for???……if it is , then your ISP is not the problem / the wiring going to the modem is not the problem….the modem / router is not the problem….

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